EN 1186-7:2002

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Werkstoffe und Gegenstände in Kontakt mit Lebensmitteln - Kunststoffe - Teil 7: Prüfverfahren der Gesamtmigration in wässrige Prüflebensmittel mit einem BeutelMatériaux et objets en contact avec les denrées alimentaires - Matiere plastique - Partie 7: Méthodes d'essai pour la migration globale dans les simulants aqueux a l'aide d'un sachetMaterials and articles in contact with foodstuffs - Plastics - Part 7: Test methods for overall migration into aqueous food simulants using a pouch67.250Materiali in predmeti v stiku z živiliMaterials and articles in contact with foodstuffsICS:Ta slovenski standard je istoveten z:EN 1186-7:2002SIST EN 1186-7:2002en01-september-2002SIST EN 1186-7:2002SLOVENSKI
STANDARDSIST ENV 1186-7:19971DGRPHãþD

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1186-7April 2002ICS 67.250Supersedes ENV 1186-7:1994English versionMaterials and articles in contact with foodstuffs - Plastics - Part7: Test methods for overall migration into aqueous foodsimulants using a pouchMatériaux et objets en contact avec les denréesalimentaires - Matière plastique - Partie 7: Méthodesd'essai pour la migration globale dans les liquidessimulateurs aqueux à l'aide d'un sachetWerkstoffe und Gegenstände in Kontakt mit Lebensmitteln- Kunststoffe - Teil 7: Prüfverfahren der Gesamtmigration inwässrige Prüflebensmittel mit einem BeutelThis European Standard was approved by CEN on 4 January 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1186-7:2002 ESIST EN 1186-7:2002

Example of a pouch holder.11Annex B (informative)
Precision data.12Annex ZA (informative)
Relationship of this European Standard with Council Directive 89/109/EECand Commission Directive 90/128/EEC and associated Directives.13Bibliography.15SIST EN 1186-7:2002

Further Directives andamendments to existing Directives are expected which could change the legislative requirements which thisstandard supports.
It is therefore strongly recommended that users of this standard refer to the latest relevantpublished Directive(s) before commencement of any of the test or tests described in this standard.EN 1186-7:2002 should be read in conjunction with EN 1186-1:2002.Further Parts of this standard have been prepared, and others are in preparation, concerned with the determinationof overall migration from plastics materials into food simulants.Their titles are as follows:EN 1186 - Materials and articles in contact with foodstuffs - Plastics –Part 1Guide to the selection of conditions and test methods for overall migrationPart 2Test methods for overall migration into olive oil by total immersionPart 3Test methods for overall migration into aqueous food simulants by total immersionPart 4Test methods for overall migration into olive oil by cellPart 5Test methods for overall migration into aqueous food simulants by cellPart 6Test methods for overall migration into olive oil using a pouchPart 8Test methods for overall migration into olive oil by article fillingPart 9Test methods for overall migration into aqueous food simulants by article fillingPart 10Test methods for overall migration into olive oil
(modified method for use in cases whereincomplete extraction of olive oil occurs)Part 11Test methods for overall migration into mixtures of 14C-labelled synthetic triglyceridePart 12Test methods for overall migration at low temperaturesSIST EN 1186-7:2002

These pouches should be preparedwhere possible so that the total surface area exposed is not less than 1 dm².2 Normative referencesThis European Standard incorporates by dated and undated reference, provisions from other publications.
Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter.
Fordated references, subsequent amendments to and revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision.
For undated references the latest edition of thepublication referred to applies (including amendments).EN 1186-1:2002, Materials and articles in contact with food – Plastics – Part 1: Guide to the selection of conditionsand test methods for overall migration.ISO 648, Laboratory glassware - One mark pipettes.ISO 4788, Laboratory glassware - Graduated measuring cylinders.3 PrincipleThe overall migration of non-volatile substances from a sample of the plastics is determined as the mass of non-volatile residue after evaporation of the food simulant, see clauses 4, 5 and 5 of EN 1186-1:2002.Test specimens in the form of pouches are filled with the aqueous food simulant for the exposure time attemperatures up to and including 70 °C.
At the end of the test period, the food simulant is removed from each testspecimen.
The food simulant from each test specimen is evaporated to dryness, the mass of the non-volatileresidue is determined and expressed as milligrams per square decimetre of surface area of test specimen.NOTEIn some circumstances the procedure described in this standard can be used for exposure at temperatures above70 °C.Overall migration is reported as the mean of three determinations on separate test specimens.4 ReagentsNOTEFor details of the preparation and purity of these reagents see clause 4 of EN 1186-1:2002.4.1Distilled water or water of equivalent quality (simulant A)4.2Acetic acid 3 % (w/v) in aqueous solution (simulant B)SIST EN 1186-7:2002

Glass, glass ceramic or ceramic dishes may beused provided that the surface characteristics are such that the masses of the dishes after evaporation of anyspecified food simulants followed by conditioning in the desiccator used achieves a constancy of ± 0,5 mg.Stainless steel and nickel dishes are suitable only for distilled water and ethanol solutions.
Glass, glass ceramic,glazed ceramic, platinum, platinum alloy or gold dishes are suitable for all three simulants.5.12Steam bath, hot plate, distillation apparatus or rotary evaporator for evaporation of food simulant at the endof test period.5.13Desiccator with anhydrous calcium chloride or self indicating silica gel.5.14Heat or pressure sealing device, for use in forming pouches.5.15Measuring cylinders, 100 ml, complying with the minimum requirements of ISO 4788.6 Preparation of test specimens6.1 GeneralIt is essential that test specimens are clean and free from surface contamination (many plastics can readily attractdust due to static charges). Before preparing test specimens, remove any surface contamination from the sampleby gently wiping it with a lint-free cloth, or by brushing with a soft brush. Under no circumstances wash the sampleSIST EN 1186-7:2002

Minimize handling of the samples and where necessary, wear cottongloves.6.2 Number of test specimensThree test specimens are required.6.3 Cutting and preparation of specimensLay the sample on the cutting slab (5.1) with the surface to be in contact with the food simulant uppermost and cutthe test specimens using the 120 mm ´ 120 mm template (5.5).Place pairs of the test pieces together with the surfaces to be in contact
...